Question

Describe the action of the indexOf and substring methods. Explain how these methods can be used to divide an existing string into two parts. Why is it necessary to add 1 to the position of the space when copying the remainder of the string

Answer 1

The indexOf is a string method used to get the index of a character in a string. It can be used with the slice, substr, or subString methods to divide a string into two or more parts.

var words = "hello John Snow";

var A = words.slice(0, words.indexOf("John"));

var B = words.slice(words.indexOf("John") + 1, words.length());

One (1) is added to the space of avoid repeating a character in both new strings.

Step-by-step explanation:

The indexOf method is a built-in method in Javascript used to get the index of a character or word in a string variable. The return integer number can be used in a method like a slice() to divide the string and them to other string variables.